Standard Science Primary 5 Systems

Which of the following correctly shows the path of inhaled air in the human body?

A Mouth → Windpipe → Heart
B Nose → Gullet → Lungs
C Nose → Windpipe → Lungs
D Lungs → Windpipe → Nose
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Worked Solution

Step 1: Identify the starting point of inhalation (Nose/Mouth). Step 2: Trace the tube (Windpipe) leading to the lungs. Step 3: Recognize that air enters the air sacs in the lungs.

Correct answer: Nose → Windpipe → Lungs

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